baber/WOPTO huggingface dataset:
Patent EP-0415196-A2 (EP)
Inventor: MUELLER KLAUS-HELMUT DR
IPC: C07D405/12
Filed: 1990-08-17
Abstract: Novel substituted 4,5-diamino-1,2,4-triazol-3-(thi)ones of the general formula (I) 
<IMAGE>
 a plurality of processes and novel intermediates for their preparation, and their use as herbicides.
Patent EP-0405621-A2 (EP)
Inventor: CLAWSON LAWRENCE G
IPC: F24H8/00
Filed: 1986-07-25
Abstract: Combustion products enter at an inlet (270) and flow across a water reservoir (274) thereby becoming elevated in dew point before flowing upwards through a heat exchanger (260) to a flue opening (272). Liquid to be heated is forced through the heat exchanger tubes (262) by a pump (264) and is heated both by transfer of sensible heat and heat of condensation from the combustion products. Condensation forms on the fins (276) of the exchanger (260) and flows down to the reservoir (274) thereby preventing corrosion.
Patent EP-0422424-A2 (EP)
Inventor: HANSEN KAJ BORGE
IPC: H04M1/03
Filed: 1990-09-20
Abstract: An electrodynamic transducer with a moving coil (4) for use in telephone subscriber's sets has a membrane (5) and a magnetic system with a magnet (1), an outer (2) and an inner (3) pole plate, enclosed in a casing (8) and a cover (7). An insert (6) is clamped axially between the magnetic system and the cover (7) and has an extension (20) which passes through an opening (14) in the membrane and rests on the magnetic system. This insert (6) is pref. made of a non magnetisablee and non conductive material such as polyamide or ABS. The steel cover (7) is 0.5-1 mm thick.
Patent EP-0421235-A2 (EP)
Inventor: STIMPSON DONALD IRVINE
IPC: G01N30/92
Filed: 1990-09-25
Abstract: Laminated porous membranes useful in chromatographic assay devices include nitrocellulose or polyvinylidene difluoride (PVDF) membranes laminated to supports. Despite lamination, the membranes remain wettable and the activity of biologically reactive reagents is not impaired, even when organic solvent based adhesives are used, due to the incorporation of an agent of the formula: 
R₁N(CH₃)           +       3              · SO           -       4             R₂ 
in a concentration range of from about 0.1% to about 0.2% (w/w) for nitrocellulose, and from about 2% to about 10% (w/w) for PVDF membranes. R₁ and R₂ are nonpolar, preferably alkyl moieties.
Patent EP-0427033-A2 (EP)
Inventor: STERNFELD HANS PROF DR
IPC: F23D14/22
Filed: 1990-10-20
Abstract: In order to produce a steam generator with an injection head, through which an oxidant and a fuel are blown into a combustion chamber adjoining the injection head, and with injection devices for water which open into the combustion chamber, in which generator optimum combustion conditions are created in the combustion chamber, it is proposed that the injection head has a number of injection elements which inject the oxidant and the fuel together into the combustion chamber and which conduct one of the two in an inner cylindrical flow and the other in a ring flow surrounding the inner cylindrical flow. …<IMAGE>…
Patent EP-0425979-A2 (EP)
Inventor: ZAMZOW PETER
IPC: G02B6/44
Filed: 1990-10-23
Abstract: In an optical cable having optical conductors stranded around a core, and having a ribbon structure over which a strength layer is arranged, and having an outer sheath, it is provided that the core has mutually displaceable fibres made of glass and/or aramid which are stranded with a large lay and embedded in a compound. The core has a plastic covering, the strength layer consisting of a layer, at least 1 mm thick, of glass fibres and a filler for achieving longitudinal watertightness.
Patent EP-0381491-A2 (EP)
Inventor: SALOMON SALOMON M
IPC: B04B7/08
Filed: 1990-02-01
Abstract: A screen bowl centrifuge has slots which have successive portions which slope lengthwise toward a common axis, and additionally, slots which slope laterally toward the common axis. The screen bowl centrifuge may also have slots which conform to the predominant path of solids through the centrifuge by providing helically shaped screen bowl elements.
Patent EP-0399777-A2 (EP)
Inventor: CHOUDHURY CHANDRA
IPC: C12N15/27
Filed: 1990-05-22
Abstract: A T cell-derived colony stimulating factor (TC-CSF) may be isolated from media conditioned with T lymphocyte cells. TC-CSF stimulates formation of colonies composed of granulocytes, macrophages, megakaryocytes and mixed colonies of granulocytes and macrophages. Anion exchange chromatography may be employed in conjunction with gel filtration to isolate murine TC-CSF having a molecular mass of about 55 Kd.
Patent EP-0418021-A2 (EP)
Inventor: MASCIOLI ROCCO L
IPC: C09K17/18
Filed: 1990-09-11
Abstract: Aqueous solutions of alkali metal silicate are hardened using blends of alkylene carbonates and aliphatic alcohols such as alkylene diols, polyalkylene glycols, or hydroxyalkyl ethers. The aliphatic alcohol decreases the set time from that obtained using alkylene carbonate alone. The hardened alkali metal silicate compositions are useful as binders in the preparation of foundry molds or in other applications requiring agglomeration of particulate matter.
Patent EP-0425097-A2 (EP)
Inventor: EMSLIE ROBERT JAMES
IPC: H04B1/713
Filed: 1990-09-24
Abstract: An amplifier arrangement suitable for use in a receiver for use in a telecommunications system is described. The arrangement includes an amplifier 45 and an FET switch arrangement 53 arranged to alter the time constant of the amplifier 45 in dependence upon the incident signal frequency. A balance switch arrangement 55 is arranged such that switching transients of the switch arrangement 53 are cancelled out in the amplifier arrangement.
Patent EP-0442435-A2 (EP)
Inventor: MEISTER BURKHARDT DR DIPL-CHEM
IPC: B29B17/00
Filed: 1991-02-12
Abstract: The invention relates to a process for the recycling of waste or used articles made of crosslinked plastic, in particular polyurethane, involving the following process steps:   a) the waste or used articles as raw material are comminuted, for example to give chips or granules, where the size of the comminuted raw material is </= 15 mm, in particular </= 5 mm; b) the comminuted raw material is treated for from 5 to 30 minutes in an apparatus which exerts thermomechanical load, in particular in a compounder, at an apparatus temperature of from 130 to 180 DEG C; c) for re-crosslinking, the degradation product is mixed with a polyfunctional isocyanate at a material temperature of </= 80 DEG C in a mixing apparatus, in particular in a low-temperature compounder, at an apparatus temperature of </= 30 DEG C;   d) the reaction mixture is cooled immediately; e) the mixture is finally heated for from 5 to 20 minutes at from 130 DEG  to 170 DEG C in a mould at a minimum pressing pressure of 100 bar, during which it is re-crosslinked. a
Patent EP-0448978-A2 (EP)
Inventor: NOMURA MASASHI
IPC: C08F220/12
Filed: 1991-02-28
Abstract: A material for contact lenses obtainable by visible ray polymerization of a mixture comprising one or more of unsaturated carboxylic acid(s) and one or more of visible ray polymerization initiator(s) such as an α -diketon compound, and optionally one or more of unsaturated carboxylate(s). The visible ray polymerization is easy. The material is free from polymerization strain and will not be destroyed by an esterification treatment for preparating a soft contact lens. Hard and soft contact lenses are prepared from the material.
Patent EP-0447910-A2 (EP)
Inventor: REICHL ERWIN DIPL-ING
IPC: H01R13/53
Filed: 1991-03-11
Abstract: A plug socket of an internal-cone plug coupling for cables in a high-voltage apparatus, especially a medium-voltage switching installation, has an insulating body (2) which, on one end side (4), has an opening of an internal-cone recess (3) and, concentrically thereto, a plurality of attachment fittings (6,7) which are arranged radially externally and are directed parallel to the axis. In addition, an embedded electrode is provided for capacitive voltage decoupling, having an electrical connection and a plug contact part. In this case, the electrode (12) is arranged around the internal-cone recess (3). In this way, the capacitance value is increased and the electrical field distribution is improved. <IMAGE>
Patent EP-0452765-A2 (EP)
Inventor: GITTOS MAURICE WARD
IPC: A61K31/445
Filed: 1986-09-08
Abstract: Phenyl-3-aminoalkyl-4-methyl-2,6-dioxopiperidines of the Formula I
       
 wherein: 
   R₁ represents methoxy, ethoxy or hydroxy, 
   R₂ represents methoxy, ethoxy, hydroxy or hydrogen; 
   each R₃ independently represents methyl or ethyl; 
   R₄ represents hydrogen or methyl; 
   R₅ represents hydrogen or methyl; and 
    n  represents 2 or 3, 
 and a pharmacologically acceptable acid addition salt thereof potentiate the immunoresponse of a patient and thereby have antibacterial and antiviral activity.
Patent EP-0451778-A2 (EP)
Inventor: SAITA YOSHIAKI C O SEIKO INSTR
IPC: B41J2/365
Filed: 1991-04-09
Abstract: In order to carry out heat generating temperature control of high precision, a heat recording device comprises a plurality of blocks having heat generating resistors (1) which have current consumption characteristics for transit from a first current consumption state of at least a second low current consumption state for recording with a more uniform temperature independent from the thermal environment of the heat generating resistors (1). By supplying the voltage pulses in a time sharing mode an overlapping of the current consumption states can be prevented. The heat generating resistors (1) comprise different portions (7,8,10,11) which change the resistivity as soon as the temperature has reached a specific temperature value reducing the consumption current.
Patent EP-0453948-A2 (EP)
Inventor: HARA YOSHINORI
IPC: C07C29/149
Filed: 1991-04-17
Abstract: A method for producing 1,4-butanediol by hydrogenating succinic anhydride, succinic acid or γ-butyrolactone in the presence of a catalyst, wherein the hydrogenation reaction is conducted in a liquid phase using as the catalyst a ruthenium type catalyst comprising ruthenium, an organic phosphine and a phosphorus compound of the following formula (1):
       
 wherein each of X and Y is an atom or a group selected from the group consisting of a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxy group, an alkyl group and an aryl group.
Patent EP-0468210-A2 (EP)
Inventor: VIO FABIO
IPC: H03K3/356
Filed: 1991-06-24
Abstract: A driving circuit for driving a floating circuit (28) responsive to a digital signal (IN) includes two DMOS transistors (10, 12) which are driven in opposite phase on their respective gates starting from the digital signal. The two DMOS transistors are biased by a current source which is formed by a current mirror (16, 18), which mirrors a reference current (I BIAS ), and by an auxiliary circuit (34-44) for injecting an additional current pulse during switching. Two MOS transistors (20, 22) serve as the respective load for the two DMOS transistors. The MOS transistors can be P-channel transistors, in which event the gate of each MOS transistor (20, 22) can be connected to the drain of the other MOS transistor. Two Zener diodes (24, 26) can be employed to limit the voltage between the gate and the source of the respective MOS transistor. The driving output of the floating circuit (28) can be the drain of one of the DMOS transistors.
Patent EP-0468437-A2 (EP)
Inventor: VAN SLYKE STEVEN ARLAND
IPC: H01L33/00
Filed: 1991-07-23
Abstract: An internal junction electroluminescent device is disclosed containing, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone forming a junction with the organic hole injecting and transporting zone, and a cathode comprised of a layer contacting the organic electron injecting and transporting zone containing a combination of magnesium and aluminum. Aluminum accounts for at least 80 percent of the cathode layer.
Patent EP-0472048-A2 (EP)
Inventor: COY GERALD L
IPC: B65H7/04
Filed: 1991-08-06
Abstract: A method and apparatus for document feeding for improved operator document manual insertion in which a document may be manually initially inserted into a document input area and released. The document is sensed in the document input area by a document sensor, and then automatically clamped in a document feeding nip which is automatically actuated in response to the document sensing, and then the document is automatically fed. Here, a first time delay period is provided between the sensing of the manually inserted document and the automatic clamping of the document. A second time delay is provided between the automatic clamping and the automatic feeding of the document. Preferably the automatic clamping of the document in the feeding nip is with a limited initial nip force sufficiently low to allow manual document retraction without document damage during the second time delay period. Furthermore, preferably the document sensing automatically actuates an operator display, but here a substantial present time delay is provided between the sensing of the manually inserted document by the document sensor and the automatic actuation of the operator display.
Patent EP-0474029-A2 (EP)
Inventor: BADER JOSEPH F
IPC: G10K11/02
Filed: 1991-08-21
Abstract: An omnidirectional siren (10) having a plurality of hollow modules (11) supported in vertical alignment on a single, central pole (12). Active modules (11) each enclose a plurality of audio transducers (i.e., compression drivers) and a horn mechanism which guides sound waves from the drivers to an outlet in the lower surface of the module. The drivers are positioned peripherally within each module so that they can be easily accessed for repair or replacement through slots (34) in the peripheral surface of the module.
Patent EP-0474161-A2 (EP)
Title: Honeycomb core
Inventor: GOTOH HAJIME
IPC: B32B3/12
Filed: 1991-09-02
Abstract: The invention relates to a honeycomb core (1-1) comprising honeycomb ribbons individually obtained by laminating a plurality of sheets of paper (3-1, 3-2) comprising short fibers oriented in a specific direction with an orientation degree of 50% or more. The term "orientation degree" means the proportion of the number of fibers oriented at an angle in the range of ±5° with the specific direction to the toal number of fibers which is expressed in percentage. The honeycomb core of the present invention is lighter in weight than conventional honeycomb cores and has high strength properties in a specific direction.
Patent EP-0492701-A2 (EP)
Inventor: WELMER HARM JAN
IPC: H04N5/44
Filed: 1991-12-13
Abstract: A domestic video system comprises a number of interconnected video apparatuses (10,12,14), at least one of the apparatuses including a facility for conversion of the aspect ratio of video signals. The system further comprises control means (20) operating via a standard serial bus (16) for systematically interrogating each apparatus in a signal path to determine whether aspect ratio conversion is necessary in the signal path and for selectively enabling or disabling any conversion facility in the signal path to effect such necessary conversion. The control means implements a strategy for eliminating unnecessary conversion of aspect ratio in the signal path, and also chooses to effect conversion as late as possible in the signal path when faced with more than one available conversion facility.
Patent EP-0448317-A2 (EP)
Inventor: MATSUI SATOSHI
IPC: G06F9/318
Filed: 1991-03-18
Abstract: An improvement of the present invention relates to a data length deciding unit of an information processing apparatus using instructions having different data length. The information processing apparatus has a compact ROM for storing microprograms. The information processing apparatus comprises a data length specifying unit for specifying either directly specified data length information or indirectly specified data length information, a storing unit for storing data length information related to a process not contained in the microprograms, a controlling unit for controlling the storing unit, and a selecting unit for selecting one of the outputs of the data length specifying unit and storing unit, and outputting the selected one.
Patent EP-0449610-A2 (EP)
Inventor: TANAKA YOSHIYUKI C O INTELLECT
IPC: G11C17/00
Filed: 1991-03-27
Abstract: A NAND cell type electrically erasable programmable read-only memory (10) has NAND cell units (MB1, MB2,..., MBn). Each NAND cell unit has a series array of floating gate type metal-oxide semiconductor field effect transistors (Mi1, Mi2,..., Mi8) as memory cell transistors. The first-stage memory cell transistor (Mi1) is connected at its gate to a corresponding bit line (BLi) via a first select transistor (Qi1). The last-stage memory cell transistor (Mi8) is connected at its source to a common source line (60) by means of a second select transistor (Qi2). The common source line (60) is connected with a test circuit (62) to be used for measuring the distribution of threshold values of the memory cell transistors (M) in the erasing state. The test circuit (62) temporarily applies the common source line (60) with a positive bias voltage (Vbias) of a predetermined potential level so that the potential (Vcgj) of the control gate of a selected memory cell transistor (Mij) is set at 0 volt. As a result, the threshold value of the EEPROM (10) in the erasing state can be measured without using any negative potential.
Patent EP-0462722-A2 (EP)
Inventor: LO YING-CHENG
IPC: C08L23/10
Filed: 1991-06-04
Abstract: An extrudable flame retardant composition and fabricatable sheets extruded therefrom are described wherein the composition comprises a blend of polypropylene, flame retardant and copolymer of ethylene and propylene wherein the ratio of polypropylene to copolymer is in the range of from about 0.5 to about 0.8.
Patent EP-0470695-A2 (EP)
Inventor: CLARKE DAVID ANDREW
IPC: C03C3/091
Filed: 1991-06-26
Abstract: A novel alumina borosilicate glass comprises, by weight percent, 76.4-80,2% silica, 11,56-12,94% boron oxide, 3,725-6,96% sodium oxide and potassium oxide, 2,8-5,0% aluminium oxide, 0-0.30% calcium oxide, plus incidental impurities. This glass powder composition has to be held at temperatures of between 700°C and 1000°C for longer time periods, than the prior art alumina borosilicate glasses, before formation of the cristobalite polymorph of silica occurs. 
     A fibre reinforced glass matrix composite may be manufactured from the above glass powder by impregnating reinforcing fibres with the glass powder, and subsequently isothermally hot pressing the impregnated fibres at a temperature of 950°C for upto one hour. The glass matrix of the composite is less likely to suffer cracking or microcracking by the formation of the cristobalite polymorph of silica. 
     Other methods for producing a fibre reinforced glass matrix composite are disclosed.
Patent EP-0486148-A2 (EP)
Inventor: JOHNSON LEE EDWARD JR
IPC: G06F3/153
Filed: 1991-10-02
Abstract: A data processing system is provided that includes a plurality of processors each including a circuit for providing a busy signal. The system also includes a plurality of registers for storing data wherein each register is dedicated to a selected processor or a selected set of processors. A control circuit is provided for receiving the busy signals and prohibiting storage from an external device to the registers dedicated a processor when that processor provides a busy signal.
Patent EP-0506059-A2 (EP)
Inventor: TERADA IZUMI
IPC: C07C67/307
Filed: 1992-03-27
Abstract: A 2-fluoroisobutyric acid ester can be obtained at a high yield in one pot by reacting a 2-hydroxyisobutyric acid ester with fluorosulfuric acid in the absence or presence of a hydrogen fluoride source, or by reacting a 2-hydroxyisobutyric acid ester with chlorosulfuric acid in the presence of a hydrogen fluoride source.
Patent EP-0513615-A2 (EP)
Inventor: SANDHU GURTEJ S
IPC: H01L21/334
Filed: 1992-05-04
Abstract: A method for fabricating a DRAM cell having enhanced-capacitance attributable to the use of a porous structured polycrystalline silicon layer storage node capacitor plate 68. The present invention is particularly applicable to DRAM cells which employ a stacked capacitor design. Such designs generally employ a conductively-doped polycrystalline silicon layer as the storage node capacitor plate 68, or lower capacitor plate. A microstructure is formed by anodizing the storage node plate layer in a solution of hydrofluoric acid to produce microstructures 63 resembling elongated pores in the storage node capacitor plate 68. The elongated pores are texturized to produce three-dimensional asperities 66 that further increase surface area of the storage node capacitor plate 68. This is followed by the deposition of a thin conformal (typically less than 100 Angstroms) silicon nitride layer 69 which in turn is followed by the deposition of a second poly-crystalline silicon (poly) layer 70, which functions as the capacitor field plate 73. Since the nitride layer 69 is thin in comparison to the texturized elongated pores in the storage node plate layer, capacitive area is substantially augmented. Cell capacitance can be increased by more than 1,000 percent using the storage node capacitor plate 68 having microstructures 63 thus formed.
Patent EP-0507351-A2 (EP)
Inventor: AKAO MUTSUO
IPC: B32B7/027
Filed: 1988-01-22
Abstract: A packaging material comprises a coextruded multilayer film with a Young's Modulus in the longitudinal direction of more than 40 kg/mm², comprising a polyolefin resin film layer, an ethylene copolymer resin film layer, a metallised flexible sheet layer laminated on said coextruded multilayer film, and a flexible sheet layer laminated on said metallised flexible sheet layer. 
     The packaging material is resitant to curling and to tearing, exhibits the properties necessary for packaging photosensitive materials and is suitable for use in automatic bag-making machines.
Patent EP-0533198-A2 (EP)
Inventor: HINO ATSUSHI
IPC: H05K3/40
Filed: 1992-09-18
Abstract: The flexible printed substrate comprises an insulating resin layer comprising a low-linear expansion polyimide resin layer (2) and a thermoplastic polyimide resin layer (3), and a metal layer (1) or a wiring circuit formed on the low-linear expansion polyimide resin layer (2) of the insulating resin layer, wherein a mixed region of the polyimide resin components is formed in the interface between the low-linear expansion polyimide resin layer (2) and the thermoplastic polyimide resin layer (3). A flexible printed substrate imparted with an adhesive property for loading on an external substrate, a double printed substrate having formed on both surfaces thereof a metal layer or a wiring circuit, and a multilayer substrate having a multilayer structure are disclosed.
Patent EP-0534485-A2 (EP)
Inventor: ISHIHARA HIDESHI
IPC: H04N5/265
Filed: 1992-09-28
Abstract: The objective of this invention is to make it possible to generate a window automatically without requiring troublesome manual operations, and by using the window to make it possible to perform a highly accurate inspection for burrs, chips, or the like. The image processing device consists of a TV camera and an image processing unit. Contained in the image processing unit is a window generator unit, which generates a window using a standard image captured from a normal sample. A mask scanning circuit in the window generator unit is used to establish a mask of 3 x 3 pixels horizontally and vertically in the standard image, to scan the raster, and to output the pixel data for all pixels within the mask to an expansion circuit and shrinkage circuit simultaneously. The expansion and shrinkage circuits perform expansion and reduction processes on the reference image and outputs both results to an exclusive-OR circuit. As a result of this calculation, a long, narrow window is generated which follows the contour of the reference image.